Nothing like a good book and a hot, steaming cup of Dunkin’ black coffee on a Saturday morning.

Mark Kalinowski, the Lead Restaurant Analyst for Janney Capital Markets, said any move McDonald’s makes could mean increased competition for Dunkin’ Donuts.

“In general, breakfast is a strength for McDonald’s,” Kalinowski said. “And to the extent McDonald’s can flex its muscles, whether at breakfast or other parts of the day, they will. That just adds to the competition Dunkin’ Donuts will face.”

Kalinowski also said he thought McDonald’s would be cautious with their breakfast experiment.

“I think lots of people would like to see breakfast offered all day,” Kalinowski said. “But it’s going to take time. That’s a big change, and if you’re McDonald’s, you don’t want to roll it out and mess it up.”

“They’re going to take their time with it and understand it from an operational standpoint before rolling it out.”

When asked for comment, McDonald’s provided details on their breakfast experiment, but did not address a question regarding whether they regard other fast-food breakfast purveyors like Dunkin’ Donuts as competition.

“We look forward to learning from this test, and it’s premature to speculate on any outcomes,” said Terri Hickey, manager of media relations. “We’re excited to serve our customers in this area some of McDonald’s great-tasting breakfast sandwiches, hash browns and other favorites all day long.”

Similarly, Dunkin’ Donuts offered a response about their own menu offerings without mentioning the golden arches.

“Dunkin’ Donuts’ all-day dining platform makes us the destination of choice for guests seeking a quick bite to eat or drink any time of day,” said Michelle King, senior director of global public relations for Dunkin’ Brands, in an email. “That’s why we serve our sandwiches all day long, and why we are committed to offering new and innovative menu options that can be enjoyed all day long.”